https://math.stackexchange.com/questions/2759670/unable-to-understand-inequality-trigonometry-graph-sin-x-dfrac-12
Desmos is interpretting you request as find all (x,y) such that x satisfies sin(x) ge -frac12. Hene for every x that satisfies that condition, every y is included. Hence we get all the ...

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https://math.stackexchange.com/questions/1599743/if-x-is-exponentially-distributed-what-is-pr-sin-x-frac12
The inequality sin x > frac12 is eqivalent to x in left( 2npi + fracpi6,,2npi + frac5pi6 ight) for some ninmathbbZ. For each ngeq 0, int_2npi + pi /6^2npi + 5pi /6 lambda exte^-lambda x extdx=left< 1- exte^-lambda x ight>_2npi + pi /6^2npi + 5pi /6 = exte^-2npilambda left( exte^-pilambda /6- exte^-5pilambda /6 ight). ...
Prove sinleft(frac1x ight) 0. The classic proof for this uses the mean value theorem, see Ben Pineau's answer. Here is one using your ...
https://math.stackexchange.com/questions/1455596/how-to-solve-for-x-in-the-equation-sin2x-frac12-within-the-interv/1455610
If sin(2x) = -frac12 then eginalign* 2x và = arcsinleft(-frac12 ight) + 2npi và 2x và = pi - arcsinleft(-frac12 ight) + 2mpi\ 2x & = -fracpi6 + 2npi & 2x & = pi ...

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Never learn fundas from a calculator! Use a text-book or other standard website resource. From first to lớn fourth quadrant it is All Silver Tea Cups for positive argument. If argument is negative then ...
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left< eginarray l l 2 và 3 \ 5 và 4 endarray ight> left< eginarray l l l 2 & 0 và 3 \ -1 & 1 & 5 endarray ight>
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